真正安全的系统只能关机断电，放到一个混凝土浇注的建筑物中的一个密闭的房间中，并配备警力进行守卫。
The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards.
与持续的空气调节器相似，此款加热器可用于较小的密闭空间或建筑物内，可以控制建筑物表面的湿度和污染物等级。
Designed like a permanent air handler, these heaters work well in tightly enclosed Spaces or buildings, helping control moisture and contaminant levels for construction finishing.
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